Home / 819,450.34-1,130,915.73-497,242.06

Finding the Fourth Proportional to 819,450.34, 1,130,915.73 and 497,242.06

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Solution

The fourth proportional to 819,450.34, 1,130,915.73 and 497,242.06 is: 686,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,450.34 : 1,130,915.73 = 497,242.06 : x
  2. Step 2: Convert to fraction form
    819,450.34/1,130,915.73 = 497,242.06/x
  3. Step 3: Cross multiply
    819,450.34x = 1,130,915.73 × 497,242.06
  4. Step 4: Simplify right side
    819,450.34x = 562,338,867,271.60
  5. Step 5: Solve for x
    x = 562,338,867,271.60/819,450.34
  6. Step 6: Final answer
    x = 686,239.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.